# this one is like your scripts with argv
def print_two(*args):
    arg1,arg2 = args
    print(f"arg1: {arg1}, arg2: {arg2}")

# ok, that *args is actually pointless, we can just do this
def print_two_again(arg1,arg2):
    print(f"arg1: {arg1}, arg2: {arg2}")

# this just takes one argument
def print_one(arg1):
    print(f"arg1: {arg1}")

# this one takes no arguments
def print_none():
    print("I got nothin'.")

# 加法
def add(*args):
    arg1,arg2,arg3 = args
    print(int(arg1) + int(arg2) + int(arg3))



print_two("Zed","Shaw")
print_two_again("Zed","Shaw")
print_one("First!")
print_none()
add(1,2,3)